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Cheap flights from Ontario to Saint George from $267

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Saint George departing on 9/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Saint George

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
1:04 pm - 5:05 pmONT  Ontario-SGU Saint George
27h 01m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
7:30 am - 12:06 pmSGU  Saint George-ONT Ontario
29h 36m1 stop Phoenix Sky Harbor Intl
$321American Airlines
Wed, Sep 23 - Wed, Sep 30
American Airlines Logo
10:00 am - 5:01 pmONT  Ontario-SGU Saint George
30h 01m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
11:31 am - 12:06 pmSGU  Saint George-ONT Ontario
49h 35m1 stop Phoenix Sky Harbor Intl
$348American Airlines
Sun, Sep 6 - Sun, Sep 13
American Airlines Logo
6:15 am - 11:00 amONT  Ontario-SGU Saint George
3h 45m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
7:30 am - 12:06 pmSGU  Saint George-ONT Ontario
5h 36m1 stop Phoenix Sky Harbor Intl
$349American Airlines
Wed, Sep 23 - Wed, Sep 30
United Airlines Logo
5:00 am - 1:15 pmONT  Ontario-SGU Saint George
7h 15m1 stop Denver Intl
United Airlines Logo
8:34 am - 12:50 pmSGU  Saint George-ONT Ontario
5h 16m1 stop Denver Intl
$359United Airlines
Sat, Sep 12 - Sun, Sep 13
Delta Logo
1:24 pm - 6:41 pmONT  Ontario-SGU Saint George
4h 17m1 stop Salt Lake City
Delta Logo
5:50 am - 8:55 amSGU  Saint George-ONT Ontario
4h 05m1 stop Salt Lake City
$366Delta
Thu, Oct 15 - Mon, Oct 19
American Airlines Logo
6:15 am - 11:10 amONT  Ontario-SGU Saint George
3h 55m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
7:30 am - 12:06 pmSGU  Saint George-ONT Ontario
5h 36m1 stop Phoenix Sky Harbor Intl
$366American Airlines
Tue, Sep 8 - Tue, Sep 15
American Airlines Logo
6:15 am - 11:00 amONT  Ontario-SGU Saint George
3h 45m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
5:36 pm - 10:43 pmSGU  Saint George-ONT Ontario
6h 07m1 stop Phoenix Sky Harbor Intl
$367American Airlines
Sat, Sep 12 - Sun, Sep 13
United Airlines Logo
5:00 am - 1:15 pmONT  Ontario-SGU Saint George
7h 15m1 stop Denver Intl
United Airlines Logo
1:50 pm - 8:53 pmSGU  Saint George-ONT Ontario
8h 03m1 stop Denver Intl
$373United Airlines
Sun, Aug 30 - Tue, Sep 8
United Airlines Logo
5:00 am - 1:10 pmONT  Ontario-SGU Saint George
7h 10m1 stop Denver Intl
United Airlines Logo
1:50 pm - 8:53 pmSGU  Saint George-ONT Ontario
8h 03m1 stop Denver Intl
$373United Airlines
Sat, Aug 29 - Tue, Sep 1
United Airlines Logo
5:00 am - 1:15 pmONT  Ontario-SGU Saint George
7h 15m1 stop Denver Intl
United Airlines Logo
1:50 pm - 8:53 pmSGU  Saint George-ONT Ontario
8h 03m1 stop Denver Intl
$373United Airlines
Sun, Aug 30 - Wed, Sep 9

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United Airlines flights from Ontario to Saint George

Our best United Airlines deals on Ontario to Saint George flight tickets
United Airlines
Sep 12
ONT5:00 amOntario
7h 15m
1 stop
SGU1:15 pmSaint George
Sep 13
SGU8:34 amSaint George
5h 16m
1 stop
ONT12:50 pmOntario
$359
United Airlines
Aug 22
ONT5:00 amOntario
7h 10m
1 stop
SGU1:10 pmSaint George
Aug 29
SGU1:50 pmSaint George
8h 03m
1 stop
ONT8:53 pmOntario
$373
United Airlines
Aug 22
ONT5:00 amOntario
7h 10m
1 stop
SGU1:10 pmSaint George
Aug 26
SGU1:50 pmSaint George
8h 03m
1 stop
ONT8:53 pmOntario
$388

American Airlines flights from Ontario to Saint George

Our best American Airlines deals on Ontario to Saint George flight tickets
American Airlines
Sep 23
ONT1:04 pmOntario
27h 01m
1 stop
SGU5:05 pmSaint George
Sep 30
SGU7:30 amSaint George
29h 36m
1 stop
ONT12:06 pmOntario
$321
American Airlines
Sep 6
ONT10:00 amOntario
30h 01m
1 stop
SGU5:01 pmSaint George
Sep 13
SGU11:31 amSaint George
49h 35m
1 stop
ONT12:06 pmOntario
$348
American Airlines
Sep 23
ONT6:15 amOntario
3h 45m
1 stop
SGU11:00 amSaint George
Sep 30
SGU7:30 amSaint George
5h 36m
1 stop
ONT12:06 pmOntario
$349

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Saint George that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 11, 2026.
Use the filters below to find and compare flights from Ontario to Saint George that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSaint George

ONT Ontario - SGU Saint George

ONTSGU

Ontario

Wed 9/23

1:04 pm-5:05 pm

1 stop27h 01m

Saint George

Wed 9/30

7:30 am-12:06 pm

1 stop29h 36m

$321

OntarioSaint George

ONT Ontario - SGU Saint George

ONTSGU

Ontario

Sun 9/6

10:00 am-5:01 pm

1 stop30h 01m

Saint George

Sun 9/13

11:31 am-12:06 pm

1 stop49h 35m

$348

OntarioSaint George

ONT Ontario - SGU Saint George

ONTSGU

Ontario

Wed 9/23

6:15 am-11:00 am

1 stop3h 45m

Saint George

Wed 9/30

7:30 am-12:06 pm

1 stop5h 36m

$349

OntarioSaint George

ONT Ontario - SGU Saint George

ONTSGU

Ontario

Sat 9/12

5:00 am-1:15 pm

1 stop7h 15m

Saint George

Sun 9/13

8:34 am-12:50 pm

1 stop5h 16m

$359
Quickest round-trip

OntarioSaint George

ONT Ontario - SGU Saint George

ONTSGU

Ontario

Thu 10/15

1:24 pm-6:41 pm

1 stop4h 17m

Saint George

Mon 10/19

5:50 am-8:55 am

1 stop4h 05m

$366

OntarioSaint George

ONT Ontario - SGU Saint George

ONTSGU

Ontario

Tue 9/8

6:15 am-11:10 am

1 stop3h 55m

Saint George

Tue 9/15

7:30 am-12:06 pm

1 stop5h 36m

$366

OntarioSaint George

ONT Ontario - SGU Saint George

ONTSGU

Ontario

Sat 9/12

6:15 am-11:00 am

1 stop3h 45m

Saint George

Sun 9/13

5:36 pm-10:43 pm

1 stop6h 07m

$367

OntarioSaint George

ONT Ontario - SGU Saint George

ONTSGU

Ontario

Sun 8/30

5:00 am-1:15 pm

1 stop7h 15m

Saint George

Tue 9/8

1:50 pm-8:53 pm

1 stop8h 03m

$373

OntarioSaint George

ONT Ontario - SGU Saint George

ONTSGU

Ontario

Sat 8/29

5:00 am-1:10 pm

1 stop7h 10m

Saint George

Tue 9/1

1:50 pm-8:53 pm

1 stop8h 03m

$373

OntarioSaint George

ONT Ontario - SGU Saint George

ONTSGU

Ontario

Sun 8/30

5:00 am-1:15 pm

1 stop7h 15m

Saint George

Wed 9/9

1:50 pm-8:53 pm

1 stop8h 03m

$373

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Saint George from

How to get the cheapest flight ticket from Ontario to Saint George

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Saint George?

The cheapest day to depart on your flight to Saint George is on a Saturday when prices can be found for as low as $263. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Saint George on Sunday is $562.

What is the cheapest time of day to depart on your flight to Saint George?

Our most recent data shows that the best time of day to fly to Saint George is at noon. Flights from Ontario to Saint George during this time can be as low as $299. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $488 on average. Flights to Saint George from Ontario in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Ontario to Saint George

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Saint George according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Saint George (ONT to SGU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Saint George

Fastest flight time

3h 54m

Direct flights

None
The fastest flight from Ontario to Saint George takes 3h 54m
There are no direct flights from Ontario to Saint George. There are no popular flight routes from Ontario to Saint George.
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Frequently asked questions about flying from Ontario to Saint George

  • How far is Ontario to Saint George by plane?

    Saint George is 310.6 mi away from Ontario. By plane, this route typically takes 3h 54m.

  • When did momondo last update prices for flights from Ontario Airport to Saint George Airport?

    Prices for flights from Ontario Airport to Saint George Airport are updated daily.

  • How many operators does momondo search for flights from Ontario Airport to Saint George Airport?

  • How old do you have to be to fly from Ontario Airport to Saint George Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Saint George Airport.

  • What documentation or ID do you need to fly to Saint George Airport?

    The necessary travel and health documents for your Saint George Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Ontario to Saint George?

Best airlines flying from Ontario to Saint George

Compare and see reviews for airlines that fly from Ontario to Saint George with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $238Free CancellationRating
7.1
11,903 reviews
Search American Airlines flights

Traveling to a place near Saint George?

Book flights to Saint George if you plan to visit one of these locations
Springdale
Hurricane
Virgin

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Saint George?

It is quick and easy to find Ontario to Saint George flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Saint George that suits you.

Can I find flights from Ontario to Saint George with flexible booking policies on momondo?

momondo does allow users to show only those flights to Saint George from Ontario which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Ontario to Saint George?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Saint George from Ontario.

I’m not ready to book a flight from Ontario to Saint George right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Ontario to Saint George flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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